Four postage stamps from the United States of America

Small black train sitting on top of a train track surrounded by stones

Group of men in military uniforms posing for a photo in front of a…

Close up of a plant with green leaves and white spots on it

Painting of a man and woman in medieval clothing

Open book with a drawing of a gear wheel on it

Small brown bird

Painting of a group of men sitting on top of a throne

Polar bear with its mouth open and teeth wide open